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| author | Paul Bolle <pebolle@tiscali.nl> | 2012-06-21 00:16:29 +0200 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2012-06-20 17:28:56 -0700 |
| commit | e5a7286b5f1b0b5beb97275f2152bf10c4aa4204 (patch) | |
| tree | 83ef1c24ad84e82585faf9e41f5df1b306470717 /arch/x86/boot/header.S | |
| parent | fbd24153c48b8425b09c161a020483cd77da870e (diff) | |
| download | blackbird-op-linux-e5a7286b5f1b0b5beb97275f2152bf10c4aa4204.tar.gz blackbird-op-linux-e5a7286b5f1b0b5beb97275f2152bf10c4aa4204.zip | |
x86, boot: Remove ancient, unconditionally #ifdef'd out dead code
Release v1.3.82 wrapped a few lines of code in an "#ifdef
SAFE_RESET_DISK_CONTROLLER" and "#endif" pair. Since
SAFE_RESET_DISK_CONTROLLER was never defined anywhere that was basically
a verbose "#ifdef 0" and "#endif" pair. These dead lines have been in
the tree for sixteen years but now the time has come to remove them.
I guess the main lesson here is that if you want your dead code in the
tree for a very long time you'd better be creative. A plain old "#ifdef
0" and "#endif" pair just doesn't cut it!
See: http://lkml.kernel.org/r/199603301718.LAA00178@craie.inetnebr.com
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Link: http://lkml.kernel.org/r/1340230589.1773.7.camel@x61.thuisdomein
Acked-by: Jeff Epler <jepler@unpythonic.net>
Acked-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/boot/header.S')
| -rw-r--r-- | arch/x86/boot/header.S | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S index 8bbea6aa40d9..fde5bde3b605 100644 --- a/arch/x86/boot/header.S +++ b/arch/x86/boot/header.S @@ -386,13 +386,6 @@ init_size: .long INIT_SIZE # kernel initialization size .section ".entrytext", "ax" start_of_setup: -#ifdef SAFE_RESET_DISK_CONTROLLER -# Reset the disk controller. - movw $0x0000, %ax # Reset disk controller - movb $0x80, %dl # All disks - int $0x13 -#endif - # Force %es = %ds movw %ds, %ax movw %ax, %es |
